主要技術(shù)參數(shù) |
熱電阻類型 | 測(cè)溫范圍℃ | 分度號(hào) | 允許偏差△t℃ | wzp型鉑電阻 | -200~420 | Pt100 | B級(jí)(-200~800℃)允差±(0.30+0.005/t/) | *(-200~650 ℃ ) 允差±(0.15+0.002/t/) | WZC型銅電阻 | -150~100 | Cu50 | -50~100℃允差 | | | | | |
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工作原理 |
熱電阻是利用物質(zhì)在溫度變化時(shí)本身電阻也隨著發(fā)生變化的特性來(lái)測(cè)量溫度的。熱電阻的受熱部分(感溫元件)是用細(xì)金屬絲均勻地雙繞在絕緣材料制成的骨架上,當(dāng)被測(cè)介質(zhì)中有溫度梯度存在時(shí),所測(cè)得的溫度是感溫元件所在范圍內(nèi)介質(zhì)層中的平均溫度. |
特 點(diǎn) |
全國(guó)統(tǒng)一設(shè)計(jì)產(chǎn)品,接口尺寸通用,互換性好; |
采用裝配式結(jié)構(gòu),零件分解性好,維修方便; |
更換易損件成本低; |
規(guī)格齊全,性能穩(wěn)定可靠。 |
絕緣電阻 |
裝配鉑熱電阻的常溫絕緣電阻應(yīng)不小于100MΩ |
裝配銅熱電阻的常溫絕緣電阻應(yīng)不小于50MΩ |
常溫絕緣電阻的試驗(yàn)電壓為10~100V DC。 |
自熱影響:鉑電阻允許通過(guò)的zui大電流為5mA,由此產(chǎn)生的溫升不大于0.3℃。 |
熱響應(yīng)時(shí)間:在溫度出現(xiàn)階躍變化時(shí),熱電阻的輸出變化至相當(dāng)于該階躍變化的50%,所需要的時(shí)間,稱為熱響應(yīng)時(shí)間,用τ0.5表示。 |
熱電阻時(shí)間常數(shù) |
熱惰性級(jí)別 | 時(shí)間常數(shù)(秒) | 熱惰性級(jí)別 | 時(shí)間常數(shù)(秒) | Ⅰ | 90-180 | Ⅲ | 10-30 | Ⅱ | 30-90 | Ⅳ | 10 | |
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熱電阻的公稱壓力:一般是指在工作溫度下保護(hù)管所能承受的靜態(tài)外壓而不破裂。 |
熱電阻zui小插入深度:應(yīng)不小于其保護(hù)套管外徑的8-10倍。 |
絕緣電阻:當(dāng)周圍空氣溫度為15-35℃,相對(duì)濕度<80%時(shí),絕緣電阻 20兆歐(電壓100V) |
。具有防濺式接線盒的絕緣電阻應(yīng)2兆歐(電壓100V) |
熱電阻感溫元件在0℃ 時(shí)電阻值(R0)及其與在100℃ 時(shí)的電阻值(R100)比值: |
比值=R100/R |
分度號(hào)為Pt10、Pt100時(shí);R100 /R0 =1.3850±0.001 |
分度號(hào)為Cu50、Cu100時(shí);R100 /R0 =1.3850±0.0 |
鉑銠10-鉑二等標(biāo)準(zhǔn)熱電偶WREK-182,WREK-188,WREK-192,WREK2-121,WREK2-131,WREK2-122,WREK2-132,WRNK-101,WRNK-121,WRNK-131,WRNK-181,WRNK-187,WRNK-191,WRNK-102,WRNK-122,WRNK-132,WRNK-182,WRNK-188,WRNK-192,.WRNK2-121,WRNK2-131,WRNK2-122,WRNK2-132,WRCK-101,WRCK-121,WRCK-131,WRCK-181,WRCK-187,吹氣型熱電偶WRCK-191,WRCK-102,WRCK-122,WRCK-132,WRCK-182,WRCK-188,WRCK-192,WRCK2-121,WRCK2-131,WRCK2-122,WRCK2-132,.WREK-201,WREK-221,WREK-231,WREK-281,WREK-291,WREK-202,WREK-222,WREK-232,WREK-282,WREK-292,WREK2-221,WREK2-231,WREK2-222,WREK2-232,WRNK-201,WRNK-221,WRNK-231,WRNK-281,WRNK-291,WRNK-202,WRNK-222,.WRNK-232,WRNK-282,WRNK-292,WRNK2-221,WRNK2-231,WRNK2-222,WRNK2-232,WRCK-201, WRCK-221, WRCK-231, 拱頂熱電偶WRCK-281, WRCK-291, WRCK-202, WRCK-222, WRCK-232, WRCK-282, WRCK-292. WRCK2-221, WRCK2-231, WRCK2-222, WRCK2-232,WREK-301, WREK-321, WREK-331, WREK-381, WREK-387, WREK-391, WREK-302, WREK-322, WREK-332, WREK-382, WREK-388, WREK2-321, WREK2-331, .WREK2-322 WREK2-332 ,WRNK-301, 超臨界電站用熱電偶 WRNK-321, WRNK-331, WRNK-391, WRNK-381, WRNK-387, WRNK-302, WRNK-322, WRNK-332, WRNK-392, WRNK-382, WRNK-388, WRNK2-321, WRNK2-331, WRNK2-322, WRNK2-332, WRCK-301, WRCK-321, WRCK-331, WRCK-391,WRCK-381, WRCK-387, WRCK-302, WRCK-322, .WRCK-392, WRCK-382, WRCK-388,WRCK2-321,WRCK2-331,WRCK2-322,WRCK2-332,WREK-401,WREK-421,WREK-431,WREK-481, WREK-491, WREK-402
分析儀器:
RZY-1,RZY-2,WRT-3P,CDR-4P,CDR-34P,CRY-1P,CRY-2P,CRY-31P,CRY-32P,ZRY-1P,ZRY-2P,
ZRY-32P, RJY-1P, MA99-1, MA99-2, MA99-2A, MA99-3, MB99-1, MA99-2, MA99-2A, MA99-3, MC99-2, MC99-3, MD99-1, MD99-2, MD99-2A, MD99-3, ME99-1, ME99-2, ME99-3, MF99-1, MF99-2, MF99-3, BS-16A, BS-30A, BS-100A, BS-160A, BS-100N, BSZ-16, BSZ-30, BSZ-40, SZ-100, BSZ-160, SBS-100, SBS-160, DBS-100, DBS-160, CBS-A, CBS-B, CBS-C, JLF-A, WH-1, WH-2, WH-3, XW-80A,
油口分析測(cè)量?jī)x器:
SYD-267, SYD-3536, SYD-3536A, SYD-3536B, SYD-3536D, SYD-261, SYD-261A, SYD-261B, SYD-261D, WNE-1A, WNE-1B, SYD-260, SYD-260A, SYD-2122, SYD-2122A, SYD-2122B, SYD-265B, SYD-265C, SYD-265D, SYD-265D-1, SYD-265H, SYD-265C-2, SYD-265G, SYD-265-2, SYD-255, SYD-255G, SYD-6536, SYD-6536A, SYD-6536B, SYD-6536C, SYD-0165, SYD-1884, SYD-510, SYD-510B, SYD-510-I, SYD-510G, SYD-510G-I, SYD-510E, SYD-510G-II, SYD-510D, SYD-510F1, SYD-510Z-I, HWY-ND, SYD-2430, SYD-11143, SYD-5096A, SYD-5096, SYD-0232, SYD-268, SYD-30011,
SYD-7305, SYD-7305A, SYD-12579, SYD-8019, SYD-509A, SYD-8017, SYD-8017A, SYD-0089, SYD-8018D, SYD-0175, SYD-0206, SYD-0193, SYD-11132, SYD-2801A, SYD-2801C, SYD-2801G, SYD-270A, SYD-380B, SYD-387, SYD-259, SYD-264,
SYD-264A, SYD-511B, SYD-508, SYD-0168, SYD-0324, SYD-262, SYD-262A, SYD-8929, SYD-3069, SYD-6532, SYD-1792, SYD-3554, SYD-706, SYD-6541, SYD-17623, SYD-0308, SYD-421, SYD-507,
瀝青檢測(cè)類儀器:
SYD-2806, SYD-2806E, SYD-2806F, SYD-2806G, SYD-2806H, SYD-4508A, SYD-4508B, SYD-4508C, SYD-4508D, SYD-4508F, SYD-4508G, SYD-2801D, SYD-2801D1, SYD-2801E, SYD-2801E1, SYD-2801F, SYD-2801I, SYD-0722, SYD-0722A, SYD-0615, SYD-0609, SYD-0610, SYD-265E, SYD-0620, SYD-0711A, SYD-0334, SYD-0631, SYD-0621,WNE-1C, SYD-0623, SYD-0624, SYD-0633, SYD-255A, PAV-1, SYD-XY150, SYD-0613, SYD-0613A, SYD-0709, SYD-0709A, SYD-0702, SYD-0702A, SYD-0131, SYD-F02-20, SYD-0719, SYD-0719A, SYD-0719B, SYD-0703, SYD-6307,NSF-1, SYD-0618, SYD-0653, SYD-0654, SYD-0655, SYD-0751, SYD-0752, SYD-0754, SYD-0755, SYD-1617, JJC-1D,
裝配式不銹鋼接線盒熱電阻,WZP-631B,蒸餾器:
KDN-2,KDN-660D,ZS-200,ZISC-5, ZISC-10, ZISC-20,SHZ32-50, SHZ32-100, SHZ32-200, SHZ32-400,TLG-2FBI, TLG-2FBII, TLG-2FBIII,YN-ZD-5, YN-ZD-10, YN-ZD-20, YN-ZD-Z-5,
YN-ZD-Z-10, YN-ZD-Z-20, SYZ-A, SYZ-550, SYZ-B, 1810-B, HS.Z11.5, HS.Z11.10, HS.Z11.20, RE-3000A, RE-3000B, RE-3000C, RE-3000D, RE-2000A, RE-2000B, RE-6000, RE-5299, RE-52B, RE-5286A, RE-52AA, RE-52, RE-5285A, RE52CS-1, RE52CS-2, RE-52CS, RE-52C, RE-5203, RE-5298A, RE-5298, RE-5205, RE-5210, RE-5220, RE5210A, SZ-93A, SZ-96A, SZ-97A, SZ-93, SZ-96, SZ-97, SZ-93-1, R201BL, R203B, R204B, R204B3, R205B, R205B2, R206B, R206D, R308B, R502B, R503B, R1002B, R2002B, R2003KB, R2003K2B, R5003K2B, R5003K2S, RE52-1, RE52-2, RE52-3, RE52-4, SZ-1, SZ-2, SZ-3,
消化爐,消煮爐:
KDN-4,KDN-8,KDN-12,KDN-16,KDN-20,KDN-12C,KDN-16C,HYP4,HYP-1004,SPCA-4,HYP-1008,HYP-1014,HYP-1020,HYP-1040,